Physics How much mechanical work must be done to completely melt 1 gram of ice at 0°C ? 336 J 80 J 4.2 J 2268 J 336 J 80 J 4.2 J 2268 J ANSWER DOWNLOAD EXAMIANS APP
Physics A person does some work of 1,000 J in 2 s. His power will be ________ 500W 25W 1000W 50W 500W 25W 1000W 50W ANSWER DOWNLOAD EXAMIANS APP
Physics A drop of liquid assumes spherical shape because: Intermolecular forces are strong in liquids Inter molecular forces are weak in liquids A sphere has the largest surface area for a given volume A sphere has the least surface area for a given volume Intermolecular forces are strong in liquids Inter molecular forces are weak in liquids A sphere has the largest surface area for a given volume A sphere has the least surface area for a given volume ANSWER DOWNLOAD EXAMIANS APP
Physics Which microscope is often used to view metal surfaces? Optical microscopes None of these Scanning tunneling microscopes Electron microscopes Optical microscopes None of these Scanning tunneling microscopes Electron microscopes ANSWER DOWNLOAD EXAMIANS APP
Physics A body of 4.0 kg is lying at rest. Under the action of a constant force, it gains a speed of 5 m/s. The work done by the force will be ________ 50 J 40 J 20 J 30 J 50 J 40 J 20 J 30 J ANSWER DOWNLOAD EXAMIANS APP
Physics The flow of thermal energy is called Potential Current Heat Voltage Potential Current Heat Voltage ANSWER DOWNLOAD EXAMIANS APP
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